Computer System and Management Computer for Identifying Seat Position

1. A computer system for identifying a seat position of a user, comprising: a computer used by the user; a network device to which the computer is connected, for coupling the computer to a network; and a management computer, for identifying the seat position of the user, which is coupled to the network, the computer system storing a database in which a correspondence relationship between a unique identifier of the computer and a unique identifier of the user who uses the computer is registered, wherein the management computer is configured to: judge, in a case of reception of information indicating that the computer has been connected to the network device, by referring the database, whether the computer connected to the network device is an individually-assigned computer that is individually assigned to the user or a shared-use computer used by a plurality of users; obtain, in case of which the computer connected to the network device is judged to be the shared-use computer, the unique identifier of the user of the computer connected to the network device; obtain, from the network device, information indicating a connection relationship between the network device and the computer connected to the network device; and identify the seat position of the user based on the obtained unique identifier of the user and the obtained information indicating the connection relationship, wherein the management computer is configured to: identify, in a case of which the computer connected to the network device is ludged to be the individually-assigned computer, by referring the database, the unique identifier of the user corresponding to the unique identifier of the computer connected to the network device, obtain the information indicating the connection relationship between the network device and the computer connected to the network device from the network device, and identify the seat position of the user based on the identified unique identifier of the user and the obtained information indicating the connection relationship.

2. The computer system according to claim 1 , wherein the unique identifier of the user includes an SIP URI.

3. The computer system according to claim 1 , wherein the unique identifier of the computer includes a MAC Address of the computer.

4. The computer system according to claim 1 , wherein the unique identifier of the computer includes an IP Address of the computer.

5. The computer system according to claim 1 , wherein: the network device comprises a port to which the computer is connected; and the information indicating the connection relationship includes a unique identifier of the network device and a unique identifier of the port to which the computer is connected.

6. A computer system for identifying a seat position of a user, comprising: a first computer used by the user; a network device to which the first computer is connected, for coupling the first computer to a network; a management computer, for identifying the seat position of the user, which is coupled to the network, a first database that stores a first correspondence relationship between identification information of the first computer and identification information of the user who uses the first computer; a second database that stores a second correspondence relationship between identification information of a port of the network device and identification information of a seat corresponding to the port; and an authentication computer, for authenticating the user of the first computer, which is coupled to the network, wherein: the first computer is configured to transmit to the authentication computer the identification information of the user of the first computer and the identification information of the first computer, the authentication computer is configured to transmit to the management computer the received identification information of the user of the first computer and the received identification information of the first computer, and the management computer is configured to obtain the identification information of the user of the first computer and the identification information of the first computer by receiving from the authentication computer the identification information of the user of the first computer and the identification information of the first computer, and wherein: the management computer is configured to: obtain, upon reception of information indicating that the first computer has been connected to the network device, the identification information of the first computer connected to the network device from the information indicating that the first computer has been connected to the network device, determine, by referring the first database, whether the first computer identified by the obtained identification information of the first computer is an individually-assigned computer that is individually assigned to the user or a shared-use computer for use by a plurality of users, obtain, upon determining that the first computer connected to the network device is a shared-use computer, the identification information of the user of the first computer connected to the network device, obtain the identification information of the of the port of the network device connected to the first computer, obtain, by referring the second database, the identification information of the seat corresponding to the obtained identification information of the port, and identify the seat position of the user based on the obtained identification information of the user and the obtained identification information of the seat.

7. The computer system according to claim 6 , wherein the identification information of the user of the first computer includes an SIP URI.

8. The computer system according to claim 6 , wherein the identification information of the first computer includes a MAC Address of the first computer.

9. The computer system according to claim 6 , wherein the identification information of the first computer includes an IP Address of the first computer.

10. A management computer for identifying a seat position of a user in a computer system, the computer system comprising: a computer used by the user; a network device to which the computer is connected, for coupling the computer to a network; and the management computer coupled to the network, the management computer comprising: a processor for performing operations; a storage unit connected to the processor; and an interface connected to the processor, wherein: the computer system stores a database in which a correspondence relationship between a unique identifier of the computer and a unique identifier of the user who uses the computer is registered; and the processor is configured to: judge, in a case of reception of information indicating that the computer has been connected to the network device, by referring the database, whether the computer connected to the network device is an individually-assigned computer that is individually assigned to the user or a shared-use computer used by a plurality of users; obtain, in a case of which the computer connected to the network device is judged to be the shared-use computer, the unique identifier of the user of the computer connected to the network device; obtain, from the network device, information indicating a connection relationship between the network device and the computer connected to the network device; and identify the seat position of the user based on the obtained unique identifier of the user and the obtained information indicating the connection relationship, and wherein the processor is configured to: identify, in a case of the computer connected to the network device is judged to be the individually-assigned computer, by referencing the database, the unique identifier of the user corresponding to the unique identifier of the computer connected to the network device, obtain the information indicating the connection relationship between the network device and the computer connected to the network device from the network device, and identify the seat position of the user based on the identified unique identifier of the user and the obtained information indicating the connection relationship.

11. A management computer for identifying a seat position of a user in a computer system, the computer system comprising: a first computer used by the user; a network device to which the first computer is connected, for coupling the first computer to a network; the management computer, for identifying the seat position of the user, which is coupled to the network, a first database that stores a first correspondence relationship between identification information of the first computer and identification information of the user who uses the first computer; and a second database that stores a second correspondence relationship between identification information of a port of the network device and identification information of a seat corresponding to the port, the management computer comprising: a processor for performing operations; a storage unit connected to the processor; an interface connected to the processor; and an authentication computer, for authenticating the user of the first computer, which is coupled to the network, wherein: the first computer is configured to transmit to the authentication computer the identification information of the user of the first computer and the identification information of the first computer, the authentication computer is configured to transmit to the management computer the received identification information of the user of the first computer and the received identification information of the first computer, the management computer is configured to obtain the identification information of the user of the first computer and the identification information of the first computer by receiving from the authentication computer the identification information of the user of the first computer and the identification information of the first computer, and wherein the processor is configured to: obtain, upon reception of information indicating that the first computer has been connected to the network device, the identification information of the first computer connected to the network device from the information indicating that the first computer has been connected to the network device, determine, by referring the first database, whether the first computer identified by the obtained identification information of the first computer is an individually-assigned computer that is individually assigned to the user or a shared-use computer for use by a plurality of users, obtain, upon determining that the first computer connected to the network device is a shared-use computer, the identification information of the user of the first computer connected to the network device; obtain the identification information of the of the port of the network device connected to the first computer; obtain, by referring the second database, the identification information of the seat corresponding to the obtained identification information of the port; and identify the seat position of the user based on the obtained identification information of the user and the obtained identification information of the seat.